<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2013 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Writer_Excel2007
 * @copyright  Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    1.7.9, 2013-06-02
 */


/**
 * PHPExcel_Writer_Excel2007
 *
 * @category   PHPExcel
 * @package    PHPExcel_Writer_2007
 * @copyright  Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Writer_Excel2007 extends PHPExcel_Writer_Abstract implements PHPExcel_Writer_IWriter {
	/**
	 * Office2003 compatibility
	 *
	 * @var boolean
	 */
	private $_office2003compatibility = false;

	/**
	 * Private writer parts
	 *
	 * @var PHPExcel_Writer_Excel2007_WriterPart[]
	 */
	private $_writerParts = array();

	/**
	 * Private PHPExcel
	 *
	 * @var PHPExcel
	 */
	private $_spreadSheet;

	/**
	 * Private string table
	 *
	 * @var string[]
	 */
	private $_stringTable = array();

	/**
	 * Private unique PHPExcel_Style_Conditional HashTable
	 *
	 * @var PHPExcel_HashTable
	 */
	private $_stylesConditionalHashTable;

	/**
	 * Private unique PHPExcel_Style_Fill HashTable
	 *
	 * @var PHPExcel_HashTable
	 */
	private $_fillHashTable;

	/**
	 * Private unique PHPExcel_Style_Font HashTable
	 *
	 * @var PHPExcel_HashTable
	 */
	private $_fontHashTable;

	/**
	 * Private unique PHPExcel_Style_Borders HashTable
	 *
	 * @var PHPExcel_HashTable
	 */
	private $_bordersHashTable;

	/**
	 * Private unique PHPExcel_Style_NumberFormat HashTable
	 *
	 * @var PHPExcel_HashTable
	 */
	private $_numFmtHashTable;

	/**
	 * Private unique PHPExcel_Worksheet_BaseDrawing HashTable
	 *
	 * @var PHPExcel_HashTable
	 */
	private $_drawingHashTable;

	/**
	 * Create a new PHPExcel_Writer_Excel2007
	 *
	 * @param    PHPExcel $pPHPExcel
	 */
	public function __construct(PHPExcel $pPHPExcel = null) {
		// Assign PHPExcel
		$this->setPHPExcel($pPHPExcel);

		$writerPartsArray = array(
				'stringtable' => 'PHPExcel_Writer_Excel2007_StringTable',
				'contenttypes' => 'PHPExcel_Writer_Excel2007_ContentTypes',
				'docprops' => 'PHPExcel_Writer_Excel2007_DocProps',
				'rels' => 'PHPExcel_Writer_Excel2007_Rels',
				'theme' => 'PHPExcel_Writer_Excel2007_Theme',
				'style' => 'PHPExcel_Writer_Excel2007_Style',
				'workbook' => 'PHPExcel_Writer_Excel2007_Workbook',
				'worksheet' => 'PHPExcel_Writer_Excel2007_Worksheet',
				'drawing' => 'PHPExcel_Writer_Excel2007_Drawing',
				'comments' => 'PHPExcel_Writer_Excel2007_Comments',
				'chart' => 'PHPExcel_Writer_Excel2007_Chart',
		);

		//	Initialise writer parts
		//		and Assign their parent IWriters
		foreach ($writerPartsArray as $writer => $class)
		{
			$this->_writerParts[$writer] = new $class($this);
		}

		$hashTablesArray = array(
				'_stylesConditionalHashTable',
				'_fillHashTable',
				'_fontHashTable',
				'_bordersHashTable',
				'_numFmtHashTable',
				'_drawingHashTable'
		);

		// Set HashTable variables
		foreach ($hashTablesArray as $tableName)
		{
			$this->$tableName = new PHPExcel_HashTable();
		}
	}

	/**
	 * Get writer part
	 *
	 * @param    string $pPartName Writer part name
	 *
	 * @return    PHPExcel_Writer_Excel2007_WriterPart
	 */
	public function getWriterPart($pPartName = '') {
		if ($pPartName != '' && isset($this->_writerParts[strtolower($pPartName)]))
		{
			return $this->_writerParts[strtolower($pPartName)];
		}
		else
		{
			return null;
		}
	}

	/**
	 * Save PHPExcel to file
	 *
	 * @param    string $pFilename
	 *
	 * @throws    PHPExcel_Writer_Exception
	 */
	public function save($pFilename = null) {
		if ($this->_spreadSheet !== null)
		{
			// garbage collect
			$this->_spreadSheet->garbageCollect();

			// If $pFilename is php://output or php://stdout, make it a temporary file...
			$originalFilename = $pFilename;
			if (strtolower($pFilename) == 'php://output' || strtolower($pFilename) == 'php://stdout')
			{
				$pFilename = @tempnam(PHPExcel_Shared_File::sys_get_temp_dir(), 'phpxltmp');
				if ($pFilename == '')
				{
					$pFilename = $originalFilename;
				}
			}

			$saveDebugLog = PHPExcel_Calculation::getInstance($this->_spreadSheet)->getDebugLog()->getWriteDebugLog();
			PHPExcel_Calculation::getInstance($this->_spreadSheet)->getDebugLog()->setWriteDebugLog(false);
			$saveDateReturnType = PHPExcel_Calculation_Functions::getReturnDateType();
			PHPExcel_Calculation_Functions::setReturnDateType(PHPExcel_Calculation_Functions::RETURNDATE_EXCEL);

			// Create string lookup table
			$this->_stringTable = array();
			for ($i = 0; $i < $this->_spreadSheet->getSheetCount(); ++$i)
			{
				$this->_stringTable = $this->getWriterPart('StringTable')->createStringTable($this->_spreadSheet->getSheet($i), $this->_stringTable);
			}

			// Create styles dictionaries
			$this->_stylesConditionalHashTable->addFromSource($this->getWriterPart('Style')->allConditionalStyles($this->_spreadSheet));
			$this->_fillHashTable->addFromSource($this->getWriterPart('Style')->allFills($this->_spreadSheet));
			$this->_fontHashTable->addFromSource($this->getWriterPart('Style')->allFonts($this->_spreadSheet));
			$this->_bordersHashTable->addFromSource($this->getWriterPart('Style')->allBorders($this->_spreadSheet));
			$this->_numFmtHashTable->addFromSource($this->getWriterPart('Style')->allNumberFormats($this->_spreadSheet));

			// Create drawing dictionary
			$this->_drawingHashTable->addFromSource($this->getWriterPart('Drawing')->allDrawings($this->_spreadSheet));

			// Create new ZIP file and open it for writing
			$zipClass = PHPExcel_Settings::getZipClass();
			$objZip = new $zipClass();

			//	Retrieve OVERWRITE and CREATE constants from the instantiated zip class
			//	This method of accessing constant values from a dynamic class should work with all appropriate versions of PHP
			$ro = new ReflectionObject($objZip);
			$zipOverWrite = $ro->getConstant('OVERWRITE');
			$zipCreate = $ro->getConstant('CREATE');

			if (file_exists($pFilename))
			{
				unlink($pFilename);
			}
			// Try opening the ZIP file
			if ($objZip->open($pFilename, $zipOverWrite) !== true)
			{
				if ($objZip->open($pFilename, $zipCreate) !== true)
				{
					throw new PHPExcel_Writer_Exception("Could not open " . $pFilename . " for writing.");
				}
			}

			// Add [Content_Types].xml to ZIP file
			$objZip->addFromString('[Content_Types].xml', $this->getWriterPart('ContentTypes')->writeContentTypes($this->_spreadSheet, $this->_includeCharts));

			// Add relationships to ZIP file
			$objZip->addFromString('_rels/.rels', $this->getWriterPart('Rels')->writeRelationships($this->_spreadSheet));
			$objZip->addFromString('xl/_rels/workbook.xml.rels', $this->getWriterPart('Rels')->writeWorkbookRelationships($this->_spreadSheet));

			// Add document properties to ZIP file
			$objZip->addFromString('docProps/app.xml', $this->getWriterPart('DocProps')->writeDocPropsApp($this->_spreadSheet));
			$objZip->addFromString('docProps/core.xml', $this->getWriterPart('DocProps')->writeDocPropsCore($this->_spreadSheet));
			$customPropertiesPart = $this->getWriterPart('DocProps')->writeDocPropsCustom($this->_spreadSheet);
			if ($customPropertiesPart !== null)
			{
				$objZip->addFromString('docProps/custom.xml', $customPropertiesPart);
			}

			// Add theme to ZIP file
			$objZip->addFromString('xl/theme/theme1.xml', $this->getWriterPart('Theme')->writeTheme($this->_spreadSheet));

			// Add string table to ZIP file
			$objZip->addFromString('xl/sharedStrings.xml', $this->getWriterPart('StringTable')->writeStringTable($this->_stringTable));

			// Add styles to ZIP file
			$objZip->addFromString('xl/styles.xml', $this->getWriterPart('Style')->writeStyles($this->_spreadSheet));

			// Add workbook to ZIP file
			$objZip->addFromString('xl/workbook.xml', $this->getWriterPart('Workbook')->writeWorkbook($this->_spreadSheet, $this->_preCalculateFormulas));

			$chartCount = 0;
			// Add worksheets
			for ($i = 0; $i < $this->_spreadSheet->getSheetCount(); ++$i)
			{
				$objZip->addFromString('xl/worksheets/sheet' . ($i + 1) . '.xml', $this->getWriterPart('Worksheet')
																					   ->writeWorksheet($this->_spreadSheet->getSheet($i), $this->_stringTable, $this->_includeCharts));
				if ($this->_includeCharts)
				{
					$charts = $this->_spreadSheet->getSheet($i)->getChartCollection();
					if (count($charts) > 0)
					{
						foreach ($charts as $chart)
						{
							$objZip->addFromString('xl/charts/chart' . ($chartCount + 1) . '.xml', $this->getWriterPart('Chart')->writeChart($chart));
							$chartCount++;
						}
					}
				}
			}

			$chartRef1 = $chartRef2 = 0;
			// Add worksheet relationships (drawings, ...)
			for ($i = 0; $i < $this->_spreadSheet->getSheetCount(); ++$i)
			{

				// Add relationships
				$objZip->addFromString('xl/worksheets/_rels/sheet' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')
																								  ->writeWorksheetRelationships($this->_spreadSheet->getSheet($i), ($i + 1), $this->_includeCharts));

				$drawings = $this->_spreadSheet->getSheet($i)->getDrawingCollection();
				$drawingCount = count($drawings);
				if ($this->_includeCharts)
				{
					$chartCount = $this->_spreadSheet->getSheet($i)->getChartCount();
				}

				// Add drawing and image relationship parts
				if (($drawingCount > 0) || ($chartCount > 0))
				{
					// Drawing relationships
					$objZip->addFromString('xl/drawings/_rels/drawing' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')
																									  ->writeDrawingRelationships($this->_spreadSheet->getSheet($i), $chartRef1, $this->_includeCharts));

					// Drawings
					$objZip->addFromString('xl/drawings/drawing' . ($i + 1) . '.xml', $this->getWriterPart('Drawing')
																						   ->writeDrawings($this->_spreadSheet->getSheet($i), $chartRef2, $this->_includeCharts));
				}

				// Add comment relationship parts
				if (count($this->_spreadSheet->getSheet($i)->getComments()) > 0)
				{
					// VML Comments
					$objZip->addFromString('xl/drawings/vmlDrawing' . ($i + 1) . '.vml', $this->getWriterPart('Comments')->writeVMLComments($this->_spreadSheet->getSheet($i)));

					// Comments
					$objZip->addFromString('xl/comments' . ($i + 1) . '.xml', $this->getWriterPart('Comments')->writeComments($this->_spreadSheet->getSheet($i)));
				}

				// Add header/footer relationship parts
				if (count($this->_spreadSheet->getSheet($i)->getHeaderFooter()->getImages()) > 0)
				{
					// VML Drawings
					$objZip->addFromString('xl/drawings/vmlDrawingHF' . ($i + 1) . '.vml', $this->getWriterPart('Drawing')->writeVMLHeaderFooterImages($this->_spreadSheet->getSheet($i)));

					// VML Drawing relationships
					$objZip->addFromString('xl/drawings/_rels/vmlDrawingHF' . ($i + 1) . '.vml.rels', $this->getWriterPart('Rels')
																										   ->writeHeaderFooterDrawingRelationships($this->_spreadSheet->getSheet($i)));

					// Media
					foreach ($this->_spreadSheet->getSheet($i)->getHeaderFooter()->getImages() as $image)
					{
						$objZip->addFromString('xl/media/' . $image->getIndexedFilename(), file_get_contents($image->getPath()));
					}
				}
			}

			// Add media
			for ($i = 0; $i < $this->getDrawingHashTable()->count(); ++$i)
			{
				if ($this->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_Drawing)
				{
					$imageContents = null;
					$imagePath = $this->getDrawingHashTable()->getByIndex($i)->getPath();
					if (strpos($imagePath, 'zip://') !== false)
					{
						$imagePath = substr($imagePath, 6);
						$imagePathSplitted = explode('#', $imagePath);

						$imageZip = new ZipArchive();
						$imageZip->open($imagePathSplitted[0]);
						$imageContents = $imageZip->getFromName($imagePathSplitted[1]);
						$imageZip->close();
						unset($imageZip);
					}
					else
					{
						$imageContents = file_get_contents($imagePath);
					}

					$objZip->addFromString('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);
				}
				else if ($this->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_MemoryDrawing)
				{
					ob_start();
					call_user_func($this->getDrawingHashTable()->getByIndex($i)->getRenderingFunction(), $this->getDrawingHashTable()->getByIndex($i)->getImageResource());
					$imageContents = ob_get_contents();
					ob_end_clean();

					$objZip->addFromString('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);
				}
			}

			PHPExcel_Calculation_Functions::setReturnDateType($saveDateReturnType);
			PHPExcel_Calculation::getInstance($this->_spreadSheet)->getDebugLog()->setWriteDebugLog($saveDebugLog);

			// Close file
			if ($objZip->close() === false)
			{
				throw new PHPExcel_Writer_Exception("Could not close zip file $pFilename.");
			}

			// If a temporary file was used, copy it to the correct file stream
			if ($originalFilename != $pFilename)
			{
				if (copy($pFilename, $originalFilename) === false)
				{
					throw new PHPExcel_Writer_Exception("Could not copy temporary zip file $pFilename to $originalFilename.");
				}
				@unlink($pFilename);
			}
		}
		else
		{
			throw new PHPExcel_Writer_Exception("PHPExcel object unassigned.");
		}
	}

	/**
	 * Get PHPExcel object
	 *
	 * @return PHPExcel
	 * @throws PHPExcel_Writer_Exception
	 */
	public function getPHPExcel() {
		if ($this->_spreadSheet !== null)
		{
			return $this->_spreadSheet;
		}
		else
		{
			throw new PHPExcel_Writer_Exception("No PHPExcel assigned.");
		}
	}

	/**
	 * Set PHPExcel object
	 *
	 * @param    PHPExcel $pPHPExcel PHPExcel object
	 *
	 * @throws    PHPExcel_Writer_Exception
	 * @return PHPExcel_Writer_Excel2007
	 */
	public function setPHPExcel(PHPExcel $pPHPExcel = null) {
		$this->_spreadSheet = $pPHPExcel;

		return $this;
	}

	/**
	 * Get string table
	 *
	 * @return string[]
	 */
	public function getStringTable() {
		return $this->_stringTable;
	}

	/**
	 * Get PHPExcel_Style_Conditional HashTable
	 *
	 * @return PHPExcel_HashTable
	 */
	public function getStylesConditionalHashTable() {
		return $this->_stylesConditionalHashTable;
	}

	/**
	 * Get PHPExcel_Style_Fill HashTable
	 *
	 * @return PHPExcel_HashTable
	 */
	public function getFillHashTable() {
		return $this->_fillHashTable;
	}

	/**
	 * Get PHPExcel_Style_Font HashTable
	 *
	 * @return PHPExcel_HashTable
	 */
	public function getFontHashTable() {
		return $this->_fontHashTable;
	}

	/**
	 * Get PHPExcel_Style_Borders HashTable
	 *
	 * @return PHPExcel_HashTable
	 */
	public function getBordersHashTable() {
		return $this->_bordersHashTable;
	}

	/**
	 * Get PHPExcel_Style_NumberFormat HashTable
	 *
	 * @return PHPExcel_HashTable
	 */
	public function getNumFmtHashTable() {
		return $this->_numFmtHashTable;
	}

	/**
	 * Get PHPExcel_Worksheet_BaseDrawing HashTable
	 *
	 * @return PHPExcel_HashTable
	 */
	public function getDrawingHashTable() {
		return $this->_drawingHashTable;
	}

	/**
	 * Get Office2003 compatibility
	 *
	 * @return boolean
	 */
	public function getOffice2003Compatibility() {
		return $this->_office2003compatibility;
	}

	/**
	 * Set Office2003 compatibility
	 *
	 * @param boolean $pValue Office2003 compatibility?
	 *
	 * @return PHPExcel_Writer_Excel2007
	 */
	public function setOffice2003Compatibility($pValue = false) {
		$this->_office2003compatibility = $pValue;

		return $this;
	}

}
